Marking-gage



(No Model.)

F. H. ROSSMAN.

MARKING GAGE.

No. 266,646. Patented Oct. 31, 1882.

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FREEMAN H. ROSSMAN, OF WAPPINGERS FALLS, NEW YORK.

MARKING-GAGE.

SPECIFICATION forming" part of Letters Patent No. 266,646, dated October31, 1882.

To all whom it may concern Be it known that I, FREEMAN H. RossMAN, of\Vappingers Falls, in the county of Dutchess and State of New York, haveinvented certain new and useful Improvementsin Gages and Markers; and Ido hereby declare that the following is a full, clear, and exactdescription of the invention, which willenable others skilled in the artto which it appertains to make and use the same, reference being had tothe accompanying drawings, which form a part of this specification.

This invention relates to taper gages and draw-bore markers, and hasl'orits object to provide a simple, inexpensive, and ellicient device.

To this end it consists in certain improvements in the construction andoperation otthe same.

In the drawings, Figure l is a side view of the device; Fig. 2, alongitudinal vertical sectional view thereof; Fig. 3, a horizontalsectional view on the line .10 a, Fig. 1; Fig. 4, a transverse verticalsectional view on the line y y, Fig. 1; Fig. 5, a like view on the linez 2, Fig. 1; and Figs. 6, 7, and 8, views illustrating the use of thedevice.

Referring by letter to the drawings, A des igna'es a heel-plate, havinga longitudinal groove or recess, 13, in its top face and longitudinalshoulders U G at its lower edges, one end,D, beingcurved, and the other,E, straight, as shown.

F is an arm adapted to be received into groove B, and longitudinallyadjustable therein by means of a screw-bolt, Gr, passing up through theheel-plate, and a longitudinal slot, H, in the arm, a thumb-nut, I,being provided on its end. The heel of arm F is provided with a longmarking pin, J, and near its too with a smaller pin, K. At the latterend is also provided alongitudinal slot, L, through which passes thesquare shank M of a screw-bolt, N, having a cylindrical collar, 0, atits headed end and a thumb-nut, P, at the opposite end. The part 0 formsthe toe-plate, and may be longitudinally adjusted by means of the boltand nut.

The operation and advantages of my inven- Applicution filed June 13,1882. (No model.)

tion will be readily understood. \Vhen drawn down a square taper stickwith the arm at right angles to the stick, as at Q, Fig. 6, the pin Kwill make a line, 1%, parallel to the sides; but when the arm is placeddiagonally, as at S, Fig. 6, the line will not be parallel to the sides,but perfectly straight, as at T. Then by reversing the position of thearm a line parallel to the straight line T can be formed. In thesemovements the curved edge of the heel-plate engages the edge of thestick and the lines are drawn toward the smaller end thereof.

For marking draw-bore holes in mortises, the device is placed in theposition shown in Fig. 7, with one shoulder, O, engaging the edge of thestick at the mortise, and the mark is made by the pin J.

In marking draw-bore holes in tenons the shoulder O engages the edge ofthe tenon, with thesquareend oftheheel plateabuttingagainst the shoulderofthe tenon. The mark is made by pressing on pin J, all as shown in Fig8.

I claim and desire to secure by Letters Patent- 1. The combination, witha heel-plate having a longitudinal slot in its upper lace and shouldersat its lower edges, one end being curved and the other straight, of aslotted arm longitudinally adjustable, and provided with atoe-markingpin and a longitudinally-adjustable cylindrical toe-plate,substantially as set forth.

2. The combination, with a heel-plate having shouldered edges andgrooved, one end being curved and the other straight, and asecuring-bolt and thumonut, of a slotted adjustable arm having a heeland toe marking pin and provided with a toe-plate l'ormed by a screwbolthaving a cylindrical shank, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto atlixedmy signature in presence of two witnesses.

FREEMAN HENRY ROSSMAN.

Witnesses:

ALLAN SMITH, H. CLAY ABEL.

